We estimated the interstellar absorption in the UBV system for the sample stars by using the dust map of [1]} and reduced it to the distance of the star in question by the following equation of [2]}:
\(A_{d}(b)=A_{\infty }(b)\Biggl [1-\exp \Biggl (\frac{-\mid d~\sin (b)\mid }{H}\Biggr )\Biggr ].\) 
